63895969 has 2 divisors, whose sum is σ = 63895970. Its totient is φ = 63895968.

The previous prime is 63895943. The next prime is 63895987. The reversal of 63895969 is 96959836.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47775744 + 16120225 = 6912^2 + 4015^2 .

It is a cyclic number.

It is not a de Polignac number, because 63895969 - 2¹³ = 63887777 is a prime.

It is a super-2 number, since 2×63895969² = 8165389708897922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (63895919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31947984 + 31947985.

It is an arithmetic number, because the mean of its divisors is an integer number (31947985).

Almost surely, 2^63895969 is an apocalyptic number.

It is an amenable number.

63895969 is a deficient number, since it is larger than the sum of its proper divisors (1).

63895969 is an equidigital number, since it uses as much as digits as its factorization.

63895969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3149280, while the sum is 55.

The square root of 63895969 is about 7993.4954181509. The cubic root of 63895969 is about 399.7831512128.

The spelling of 63895969 in words is "sixty-three million, eight hundred ninety-five thousand, nine hundred sixty-nine".